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Signature of twin planes in Mössbauer spectroscopy of cuprate superconductors

Boolchand, P., Blue, C., Elgaid, K., Huff, W., Kilinc, A., McDaniel, D., Biswas, P., Zhou, D. and Oostens, J. 1990. Signature of twin planes in Mössbauer spectroscopy of cuprate superconductors. Hyperfine Interactions 62 (1-2) , pp. 73-88. 10.1007/BF02407664

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One of the four quadrupole doublets (A, B, C, and D) observed in Mössbauer spectra of orthorhombic (Y or RE)1Ba2(Cu1-xFex)307-δ(δ≈0) samples is identified with Fe dopant replacing a Cu site in twin planes. The site in question, labelled as D, is characterized by a quadrupole splitting ΔD in the range 1.6±0.1 mm/s. The D-site intensity is found to approach zero when the 1-2-3, material is driven tetragonal, either upon oxygen desorption, upon oxygen loading, or upon increasing the Fe-dopant concentration.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
ISSN: 0304-3834
Last Modified: 20 May 2019 10:45

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